Adding template checkbox for new EWI-6 code review standards

Author: ijidak

.github/pull_request_template.md

@@ -1,3 +1,7 @@
+# Clever Coding Standards Agreement
+
+- [ ] Author and Review Statement, "We agree this code adheres to our [Clever Global Coding Standards](https://app.getguru.com/folders/ibabX5oT/Engineering-Standards-Best-Practices?activeCard=a8a444f4-9149-4ec7-a0fd-8ba42519d93e) and other applicable [Coding Standards](https://app.getguru.com/folders/ibabX5oT/Engineering-Standards-Best-Practices)"
+
 # JIRA
 https://clever.atlassian.net/browse/INFRANG-????
 
@@ -9,3 +13,4 @@ https://clever.atlassian.net/browse/INFRANG-????
 - [ ] Add release notes
 
 # Testing
+(how did you test this)